EXPRESS DAS
Installation and Operations Manual
66
EXPRESS DAS Installation and Operations Manual – Version 2.2 November 2013
8.4
Connect BIU to the RF Source – BTS or BDA
You can use either a Bi-Directional Amplifier (BDA) or a Base Transceiver Station (BTS) as an RF input
source. When connecting to a BDA, you will need to use a duplexer or a circulator to separate Tx/Rx
signals from each other.
Connection to the RF source is made through the input / output ports at the back of the BIU. Using a dual
band MDBU, the BIU can easily accommodate all frequency bands. As seen in the table below, the
MDBU is divided into single and dual band modules and each unit can be connected with two carrier
signals per band.
Frequency
Band
Manufacturer
Product No.
Service
Band
Downlink (Tx)
Uplink (Rx)
Input
Port
Freq (MHz)
Bandwidth
(MHz)
Output
Port
Freq (MHz)
Bandwidth
(MHz)
850Cellular
+ 1900PCS
SC_MDBU
_850_1900
1900 PCS
P 1
1930-1995 65
P 1
1850-1915 65
1900 PCS
P 2
P 2
850 Cellular
P 3
869-894
25
P 3
824-849
25
850 Cellular
P 4
P 4
700LTE
+ AWS
SC_MDBU
_700LTE_2100
700 LTE
P 1
728-757
29
P 1
B1: 698-
716
B2: 777-
787
B1: 18
B1: 10
700 LTE
P 2
P 2
AWS
P 3
2110-2115 45
P 3
1710-1755 45
AWS
P 4
P 4
1900 PCS
SC_MDBU
_1900
1900 PCS
P 1
1930-1995 65
P 1
1850-1915 65
1900 PCS
P 2
P 2
800iDEN
+ 900iDEN
SC_MDBU
_800_900
900 IDEN
P 1
935-940
5
P 1
896-901
5
900 IDEN
P 2
P 2
800 IDEN
P 3
851-869
18
P 3
806-824
18
800 IDEN
P 4
P 4
Table 8
.
3 – Port Assignments for Connecting Input and Output to RF Source
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